Littlefield Middle School RapidIdentity Name angles | Angle introduct khanacademy.org/math/cc-seventh-grade-math/cc-7th-geometry/cc-7th-angles/e/naming-angles?classCode=G86BNQAE Explore Search Khan Academy Al for Teachers FREE Donate TristanW Your last streak is behind you, so let's start fresh today. - 0 week streak Level 7 (i) 3/7 skills My assignments 7th grade COURSE: 7TH GRADE UNIT 9 Lesson 3: Vertical, complementary, and supplementary angles Angles: introduction Due Feb 8, 11:59 PM Name angles Not started Due Feb 8, 11:59 PM Complementary \& supplementar... Due Feb 8, 11:59 PM (A) C 2 of 4 ○。 Skip Check

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Littlefield Middle School RapidIdentity Name angles | Angle introduct khanacademy.org/math/cc-seventh-grade-math/cc-7th-geometry/cc-7th-angles/e/naming-angles?classCode=G86BNQAE Explore Search Khan Academy Al for Teachers FREE Donate TristanW Your last streak is behind you, so let's start fresh today. - 0 week streak Level 7 (i) 3/7 skills My assignments 7th grade COURSE: 7TH GRADE > UNIT 9 Lesson 3: Vertical, complementary, and supplementary angles Angles: introduction Due Feb 8, 11:59 PM Name angles Not started Due Feb 8, 11:59 PM Complementary \& supplementar... Due Feb 8, 11:59 PM (A) C 2 of 4 ○。 Skip Check

UpStudy AI · Accepted Answer

It seems like you're working on a geometry assignment related to angles, specifically focusing on vertical, complementary, and supplementary angles. Let's break down these concepts to help you understand them better.

### 1. Vertical Angles
- **Definition**: Vertical angles are the angles opposite each other when two lines intersect. They are always equal.
- **Example**: If two lines intersect and form angles $$A$$, $$B$$, $$C$$, and $$D$$, then $$A$$ and $$C$$ are vertical angles, as are $$B$$ and $$D$$.

### 2. Complementary Angles
- **Definition**: Two angles are complementary if the sum of their measures is $$90^\circ$$.
- **Example**: If angle $$A$$ measures $$30^\circ$$, then its complementary angle $$B$$ can be found using the equation:
  $$
  A + B = 90^\circ
  $$
  Thus, $$B = 90^\circ - A = 90^\circ - 30^\circ = 60^\circ$$.

### 3. Supplementary Angles
- **Definition**: Two angles are supplementary if the sum of their measures is $$180^\circ$$.
- **Example**: If angle $$C$$ measures $$110^\circ$$, then its supplementary angle $$D$$ can be calculated as:
  $$
  C + D = 180^\circ
  $$
  Therefore, $$D = 180^\circ - C = 180^\circ - 110^\circ = 70^\circ$$.

### Summary
- **Vertical Angles**: Equal to each other.
- **Complementary Angles**: Sum to $$90^\circ$$.
- **Supplementary Angles**: Sum to $$180^\circ$$.

If you have specific problems or examples from your assignment that you need help with, feel free to share them, and I can assist you further!
Vertical angles are equal when two lines cross. Complementary angles add up to 90 degrees, and supplementary angles add up to 180 degrees.

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